^According to an article published in the 18 July 1949 issue of Time Magazine (see [1]), the family left Austria prior to the time that Hitler invaded Austria نسخة محفوظة 21 يوليو 2013 على موقع واي باك مشين.
^"Werner von Trapp 1915–2007. Werner von Trapp passed away at his home in Waitsfield, Vermont on October 11, 2007. He was 91". Trapp Family Lodge. مؤرشف من الأصل في 2014-09-01. اطلع عليه بتاريخ 2011-01-09. Werner von Trapp was born in Zell am See, Austria in 1915, the fourth child and second son of Captain Georg von Trapp and his first wife, Agatha Whitehead. He studied cello at Salzburg's Mozarteum in the 1930's, and became proficient on several other instruments, as well as in the art of composing and arranging. He sang tenor with his family's choir, The Trapp Family Singers, who won great acclaim throughout Europe after their debut in 1935.
